* {
    margin: 0;
    padding: 0;
}
html, body {
    height: 100%;
}
#master_content {
    min-height: 100%;
    min-width: 800px;
}
.master_col {
    padding-bottom: 40px;
}
#master_header {
    height: 100px;
    text-align: center;
}
#master_lcol {
    float: left;
    width: 200px;
}
#master_rcol {
    float: right;
    width: 200px;
}
#master_centr_col {
    margin: 0 200px 0 200px;
}
#master_footer {
    position: relative;
    height: 40px;
    margin-top: -40px;
    background-color: red;
}

